Metal hub and the like



April 5, 1 932.

c. w. MANSUR 1,8525814 METAL HUB AND THE LIKE Filed May 21, 1930 Inventor": Clarence \Xl. Mansuu".

H'Ls Attorney.

I Patented i CLARENCETW. names, or 'MALDEN, MASSACHUSETTS, nssreuon' To GENERAL'LELEGQ Taro COMPANY, A oonronnrronon mzwyon 1 V METAL-HUB AND THELI'KE' v p v; Application 'filed May 21, 1930. Serial; no. 4.54am.

The present invention relates to nietalhubs whenmolded as a part of anon-metallic gear or] the like. An application of the invention wheel has a very firmrigid connection with. is inlconnection with metal hubs such asare the moldedmateriah'since themolded mateused in moldednon-metallic gear wheels, the rial is pressed around the teethand under the hub being moldedinto the center of the gear sloping sides thereof; Since themoldedma 65 I wheel web, and in thedrawings and following Qterial'islocated under the sloping sides of-the specification I have specifically illustrated teeth, the bond is "very efi'ectivein resisting,

and described this embodimentof my inven load appliedtot-he.Inoldedfmaterial'in' a 'ration. 1 It is to be understood, however, that dialdirection. p To theinvention is not limited to metal hubs for In a gear wheelof this type, it is important -60.

'gear'wheels but may be used wherever found thatthe metalhubbe connected to the molded applicable. v I PQItlOIlOf the'fgear wheelin a manner such The object ofmy invention is to provide an that under load'the' molded portion of the], v improved construction'andarrangement in a gear wheel will not loosen or turn ,on the hub. 1 5' device of. the above character, andfor a con-' Myinvention is especially advantageous ,in 46. F

' sideration'of whatl believe to benovel and this? respect because dueto the teethextendmy invention, attention is directed to, the folg ,angularly" infboth" directions from. the

lowing specification and the claimsappend'ed. plane ofthe rows of teethand-dueto the flat thereto. end surfaces 7, radially extending holding y F 2d" In the drawings, Fig.1 is a side view of a surfaces of substantial area are providedfor 7o partially completed metal hub intended for preventingturning ofthe moldedportion of use as a metal hubof a non-metallic gear the Wheel on the hub. Also, since surfaces? Wheel;'Fig. 2is a View illustrating the manare rad al, theydo not have a tendency tos I ner in which astructure embodying my inven- Presstlie molded-onniaterial away from the I 2 tion maybe constructed; Fig. 3 is a side view hll 18 h QWIfih' & l P Hg surface. ff; 75 p of acompleted hub,- and Fig. i is asectional v Ihavefoundthat by the use of aconstrucl I view through a non-metallic gearwheel havtion embodyingmy inventioml may utilize ing a hub embodyingthe invention. hub somewhat. llghter than heretofore, a Referring to thedrawings, Figs. 3 and 4, l thlng of especial advantage in the case of a indicates a hub having a central shaft open- IQtatingbody suchasa gear wheel, inthat it' s0 ing 2-and a flange 3i Thehub. is shown inreduces the-moment offinertiaof'the body., J Fig. 4' as forming a part ofa molded non- Also,.,I have found that I amenabled to o'bmetallic gear wheel blank, the web of which tain 'astrong and satisfactory connection bee is indicated at 4 and the rim of which is inditween the hub and molded material with a 35 t d t-5 v smaller mass'of materialconcentrated around 85 According to my invention, I provide the the hub than has been possible heretofore.v V outer surface of thehub with one ora plu-' In addition,I have found'thata good bond is rality of circumferentially extending rows of obtain din he case 0f molding in a mold in teeth 6 formed integral with the hub, the a direction parallel-to the'axis of the hub; V 4o t th f h row being bent at angles to the The-construction has the important advan- 9 0 planeofthe row, some of the teeth being bent tage alsothat it is capable of being 'manu, to one side of the plane of the row and other factured ona screw machine at low cost. ,As of the teeth being bent to the other side there-f one method of manufacture, I take a piece. of; The bent teeth thus overlie thesurface' of metalof-suitable shape andfirst-formon of the hub to form therewithpockets- The itthe flange {hand ioneor more ,projecting teeth have fiat radially" extending end surrings as 'show'nat 12 in Fig. l. -The rings 7 faces 7 Preferably successive teeth are bent maybe formed by cuttinggrooves in the hub.

to opposite sides of the-plane of the row as I then operate on these ringswith a cutting shown in Figs. 3 and 4.. and bending tool asshown at.9 in Fig.2,the f..

p :5 By thisconstruction I'provide ahub which tool having a cutting and bending knife, the V 9 invention may be carried out by other means.

bending surfaces being indicated at 11. The

of a screw machine and tool may form a part there may be as many cutting and bending knives as there are rings 7 to be operated upon. As the tool and hub are turned relatively to each other as shown in Fig. 2, the opposed cutting edges 10 cut the teeth and the bending surfaces 11 bend them first in one direction andthen the other fromthe plane of the ring. This method of manufacture is a simple one and one which can be carried out at low cost. r

In accordance with theprovision of the patent statutes, oi le of operation of my invention, together with the apparatus which I now consider to represent the best embodiment thereof; but

i I desire to have it understood that the apparatus shown is only illustrative and that the What I claim as new and desire to secure by Letters Patent of the United States is: '1; A metal hub or the like having a surfacewith one or more rows of teeth projecting radially therefrom, the teeth of each row being bent some to'one side of the plane of the rowand others to theother side of the lane of the row. "2. A metal hub ing radially therefrom, successive teeth of e each row being bent to opposite sides of the plane of the row.

' 3. A metal hub or the like having a surface with one or more rows of teeth project in radially therefrom, the teeth of each row being bent some to one side of the plane of the row and others to the other side of the from its outer surface, said teeth being shaped to formwith the surface of the hub pockets for the reception of material moulded on the hub, and to present end surfaces for engagement with material moulded on the hub to hold the hub and material from cireumferential movement relatively to each other.

61 In combination, a metal hub having a surface with one or more rows of teeth projectingradially therefrom, the teeth of each row'be'ing bent some to one side of the plane ofthe row and others to the other side of the plane of the row, and material moulded v y or the like having a sur-' face with one or more rows of teeth projecton the hub and embedded around and beneath'said teeth.

7 A metal hub or the like having a surface with one or more rows of teeth projecting radially therefrom, teeth of each row being bent to one side of the plane of the row to overlie the surface of the hub.

' In witness whereof, I have hereunto set my hand this 20th day of May, 1930.

V V CLARENCE W. MANSUR.

I have described the prinv 5. A metal hub having teeth'projecting 

